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/*
* \file - pkc_desc.h
* \brief - Freescale FSL CAAM support for Public Key Cryptography
*
* Author: Yashpal Dutta <yashpal.dutta@freescale.com>
*
* Copyright 2012 Freescale Semiconductor, Inc.
*
* There is no shared descriptor for PKC but Job descriptor must carry
* all the desired key parameters, input and output pointers
*
*/
#ifndef _PKC_DESC_H_
#define _PKC_DESC_H_
#include "compat.h"
#include "regs.h"
#include "intern.h"
#include "desc_constr.h"
#include "jr.h"
#include "error.h"
#include <linux/crypto.h>
#include "pdb.h"
/* Public key SG Flags and e, n lengths */
struct sg_public_flg_s {
uint32_t sg_f:1;
uint32_t sg_g:1;
uint32_t sg_n:1;
uint32_t sg_e:1;
uint32_t reserved:4;
uint32_t e_len:12;
uint32_t n_len:12;
};
/* RSA public Extended Descriptor fields
@n_dma - n, e represents the public key
@e_dma - Public key exponent, n is modulus
@g_dma - Output RSA-encrypted value
@f_dma - Input RSA-Plain value
@n_len, e_len - Public key param length
@ f_len - input data len
*/
struct rsa_pub_edesc_s {
dma_addr_t n_dma;
dma_addr_t e_dma;
dma_addr_t g_dma;
dma_addr_t f_dma;
struct sg_public_flg_s sg_flgs;
uint32_t reserved:20;
uint32_t f_len:12;
};
/* Private key Form1 SG Flags and d, n lengths */
struct sg_priv_f1_flg_s {
uint32_t sg_g:1;
uint32_t sg_f:1;
uint32_t sg_n:1;
uint32_t sg_d:1;
uint32_t reserved:4;
uint32_t d_len:12;
uint32_t n_len:12;
};
/* RSA PrivKey Form1 Extended Descriptor fields
@n_dma - n, d represents the private key form1 representation
@d_dma - d is the private exponent, n is the modules
@g_dma - Input RSA-encrypted value
@f_dma - Output RSA-Plain value
*/
struct rsa_priv_frm1_edesc_s {
dma_addr_t n_dma;
dma_addr_t d_dma;
dma_addr_t f_dma;
dma_addr_t g_dma;
struct sg_priv_f1_flg_s sg_flgs;
};
/* Private key Form2 SG Flags and d, n lengths */
struct sg_priv_f2_flg_s {
uint32_t sg_g:1;
uint32_t sg_f:1;
uint32_t sg_d:1;
uint32_t sg_p:1;
uint32_t sg_q:1;
uint32_t sg_tmp1:1;
uint32_t sg_tmp2:1;
uint32_t reserved:1;
uint32_t d_len:12;
uint32_t n_len:12;
};
/* RSA PrivKey Form2
@p, q, d represents the private key form2 representation
@d - d is private exponent, p and q are the two primes
@f - output pointer
@g - input pointer
*/
struct rsa_priv_frm2_edesc_s {
dma_addr_t p_dma;
dma_addr_t q_dma;
dma_addr_t d_dma;
dma_addr_t f_dma;
dma_addr_t g_dma;
int8_t *tmp1;
int8_t *tmp2;
dma_addr_t tmp1_dma;
dma_addr_t tmp2_dma;
struct sg_priv_f2_flg_s sg_flgs;
uint32_t reserved:8;
uint32_t q_len:12;
uint32_t p_len:12;
};
/* Private key Form3 SG Flags and d, n lengths */
struct sg_priv_f3_flg_s {
uint32_t sg_g:1;
uint32_t sg_f:1;
uint32_t sg_c:1;
uint32_t sg_p:1;
uint32_t sg_q:1;
uint32_t sg_dp:1;
uint32_t sg_dq:1;
uint32_t sg_tmp1:1;
uint32_t sg_tmp2:1;
uint32_t reserved:11;
uint32_t n_len:12;
};
/* RSA PrivKey Form3
@n - p, q, dp, dq, c represents the private key form3 representation
@dp - First CRT exponent factor
@dq - Second CRT exponent factor
@c - CRT Coefficient
@f - output pointer
@g - input pointer
*/
struct rsa_priv_frm3_edesc_s {
dma_addr_t p_dma;
dma_addr_t q_dma;
dma_addr_t dp_dma;
dma_addr_t dq_dma;
dma_addr_t c_dma;
dma_addr_t f_dma;
dma_addr_t g_dma;
int8_t *tmp1;
int8_t *tmp2;
dma_addr_t tmp1_dma;
dma_addr_t tmp2_dma;
struct sg_priv_f3_flg_s sg_flgs;
uint32_t reserved:8;
uint32_t q_len:12;
uint32_t p_len:12;
};
/*
* rsa_edesc - s/w-extended rsa descriptor
* @hw_desc: the h/w job descriptor
*/
struct rsa_edesc {
enum pkc_req_type req_type;
union {
struct rsa_pub_edesc_s rsa_pub_edesc;
struct rsa_priv_frm1_edesc_s rsa_priv_f1_edesc;
struct rsa_priv_frm2_edesc_s rsa_priv_f2_edesc;
struct rsa_priv_frm3_edesc_s rsa_priv_f3_edesc;
} dma_u;
u32 hw_desc[];
};
/*
* dsa_edesc - s/w-extended for dsa and ecdsa descriptors
* @hw_desc: the h/w job descriptor
*/
struct dsa_edesc_s {
enum pkc_req_type req_type;
enum curve_t curve_type;
uint32_t l_len;
uint32_t n_len;
dma_addr_t key_dma;
dma_addr_t s_dma;
dma_addr_t f_dma;
dma_addr_t q_dma;
dma_addr_t r_dma;
dma_addr_t c_dma;
dma_addr_t d_dma;
dma_addr_t ab_dma;
dma_addr_t g_dma;
dma_addr_t tmp_dma;
uint8_t *tmp; /* Allocate locally for dsa_verify */
u32 hw_desc[];
};
/*
* dh_edesc - s/w-extended for dh and ecdh descriptors
* @hw_desc: the h/w job descriptor
*/
struct dh_edesc_s {
enum pkc_req_type req_type;
enum curve_t curve_type;
uint32_t l_len;
uint32_t n_len;
dma_addr_t q_dma;
dma_addr_t ab_dma;
dma_addr_t w_dma;
dma_addr_t s_dma;
dma_addr_t z_dma;
u32 hw_desc[];
};
void *caam_rsa_pub_desc(struct rsa_edesc *);
void *caam_rsa_priv_f1_desc(struct rsa_edesc *);
void *caam_rsa_priv_f2_desc(struct rsa_edesc *);
void *caam_rsa_priv_f3_desc(struct rsa_edesc *);
void *caam_dsa_sign_desc(struct dsa_edesc_s *);
void *caam_dsa_verify_desc(struct dsa_edesc_s *);
void *caam_keygen_desc(struct dsa_edesc_s *);
void *caam_dh_key_desc(struct dh_edesc_s *);
#endif
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